#ifndef INSTRUCTION_H_INCLUDED
/*
Copyright (C) <2011>  <ivan vaccari>

    <ivan.vaccari@studenti.unipr.it>


This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.

This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
GNU General Public License for more details.

You should have received a copy of the GNU General Public License
along with this program.  If not, see <http://www.gnu.org/licenses/>.


*/
#define INSTRUCTION_H_INCLUDED
#include <string>
class instruction{
    private:
        std::string inState;
        std::string inSymbol;
        std::string outState;
        std::string outSymbol;
        char move; //1=left, 0=right
        std::string error;
        bool valid;
    public:
        instruction(const std::string &line);
        instruction();
        std::string getNextState() const;
        std::string getSymbolToWrite() const;
        bool moveLeft();
        bool moveRight();
        bool match(const std::string &state,const std::string &symbol) const ;
        bool isValid() const;
};

#endif // INSTRUCTION_H_INCLUDED
